Realistic B&W Mystery Character Sketch

I need a single, full-body black-and-white sketch rendered in a realistic style. The scene should feel dark and mysterious, but the real spotlight is the character’s expression: I want viewers to sense an intriguing, almost unknowable presence the moment they look into the figure’s eyes... (Budget: $250 - $750 USD, Jobs: Character Design, Concept Art, Digital Art, Illustration, Illustrator, Sketching)